1121723404 has 24 divisors (see below), whose sum is σ = 1974551040. Its totient is φ = 557575824.

The previous prime is 1121723381. The next prime is 1121723417. The reversal of 1121723404 is 4043271211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755647 + ... + 757129.

It is an arithmetic number, because the mean of its divisors is an integer number (82272960).

Almost surely, 2^1121723404 is an apocalyptic number.

It is an amenable number.

1121723404 is a deficient number, since it is larger than the sum of its proper divisors (852827636).

1121723404 is a wasteful number, since it uses less digits than its factorization.

1121723404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1121723404 is about 33492.1394359930. The cubic root of 1121723404 is about 1039.0312119800.

Adding to 1121723404 its reverse (4043271211), we get a palindrome (5164994615).

The spelling of 1121723404 in words is "one billion, one hundred twenty-one million, seven hundred twenty-three thousand, four hundred four".